Search Results for: Sound reproducing turntables
of a person's pupil may indicate whether they can hear or not. traditional ways of testing a person's hearing include tuning fork tests, speaker distance examination, and pure-tone threshold tests. these tests involve reflexes, such as raising the hand or pressing a button on hearing a particular sound
button if they heard noises at the frequency of , , , and kilohertz (khz), respectively. during the test, the participants also had to gaze at a computer screen. a dot appeared on the screen, followed by tones at random delays, which prevented the participants from predicting when they would hear the sound...
https://www.medicalnewstoday.com/articles/327462.php